Driving axle of the single type comprising loose vehicle wheels mounted upon stationary axles



A. HUGUENIN DRIVING AXLE OF THE'SINGLE TYPE COMPRISING LOOSE VEHICLE WHEELS MOUNTED UPON STATIONARY AXLES Filed April 6, 1926 2 Sheets-Sheet 1 Aug. 14, 1928. 1,680,884

'. A. HUGUENIN DRIVING AXLE OF THE SINGLE TYPE COMPRISING LOOSE VEHICLE WHEELS MOUNTED UPON STATIONARY AXLE'S Filed April 6, 1926 2 Sheets-Sheet 2 Patented Aug. 14, 1928.

UNI ED STATES rAT-ENr ovFrFi-cs.

I i v ALBERT HUG-UENIN, OF PARIS, FRANCE.

THE SINGLE TYPE CCMIRISING LOOSE VEHICLE MOUNTED UPON STATIONARY AXLES. r i

Application filed April 6, 1926, Serial No 100,188, and in France April 16, 1925. v r 7 ii traction apparatus comprising a stationary vehicle axlehaving the vehicle wheels lmsely-revoluble thereon, in order to all the advantages inherent inthis arrangementias concerns the diminution of tlmtresistnnce of the rolling motion, and chieflyin the curves, a differential device is pretarablyprovided for actuating the veh1cle wheels, but. this cannot be done without cerm taindrawbacksrehtive to the mounting of themotor' upon the vehicle axle,

In myinvcntion I eliminate all drawbacks ina very simplemanner by the use of a motnr of tlm vertical type which is mounted onithe stationary axlebut has an elastic connectim therewith and is adapted to actuate thegear wheels secured to each of the loose wheels which are disposed onthe respective ends of the ivehicle axle. By this arrangemeat, I provide a simple and lightconstructiou, whicha-fiords access to all the constituent parts. i y a The appended drawings show; by way of example an embodiment of the invention. Fig; l iiszan elevational view with parts in section.

Qis a sectional plan view according to line 2-i2-o;f Fig. 1. I V r Fig. 3 isa vertical section through the diflerential gear according to line 3-3 of Fig. 1. I r v 1 is the stationary vehicle axle whose middle parthas the shape of acylindri cal casing with verticalaxis; upon the vehicle axle areimounted two loose vehicle wheels 2 known pervse. Q The saidaxle is connected with the vehicle frame 3by two guides l of the uslial construction, with the interposition of springs of the plate or the spiral type. Upon each vehicle wheel is mounted a itootheduringj which is connected with the wheel hub by thesprings 6 affording a certain play between the toothed ring and a the said hub, so an .to reduce the starting 45 efforts and to provide a flexible transmission for the drive.

On either side, i. the pinions 7 engage the toothed rings 5,=and=the shafts carrying the said pinions are connected by means of a diflerenfial device disposed in the central casing andaciuated by a toothedring 9 en gaging withthe pinion .10 which 18 keyed t0 the vertical shaft. of the motor 11. The

motor is secured to the casing of the provides for the pressurei oiling of all the by the pump 24.

axle by the lugs 12 which are mountedon a 5 flange 13 ofsaid casing, with interposition of the rubber washers 14 whereby the motor is protected against all jarring. The commutator-of the saidmotor is disposed in the upper part of the motor. Below the commutator is disposed a double thrust bearing 15, which supports the weight of the rotating parts andalso supports the reaction of v the bevel gears 9 and 10. The motor is cooled in avery simple manner." Theairis, drawn into the lower part ofthe motor-at 16, and is circulated through the openingsv in thecasing surrounding the commutator at 17. The heated air .is discharged at a point above the flooring ofthevehicles and serves to heat the vehicle body-in the case of passenger cars. The metal hoods 18 covers the part of themotor situated within the vehicle body, and it allows the hot airto circulate into. the said'body fromithewhole of the periphery I provide a brake drum 19above the uctu ating pinion 10 which forms part of a brak ing device known per se. which iseitherof the continuous type'or of thehand operated type adapted to act upon the shaft having; the smallest couple, whereby a the size of the brake device is reduced to a minimum and its efficiency is a maximum. -I may readily dispose in the horizontal plane a hydraulic brake of the disc type :20 whose shaft is in gear engagement- -through the pinion 21-with the gear wheel 9 driving the differential casing. On the other side of the casing formed. by the stationary vo hicle axle is disposed a smallelectric motor. 22 actuating a pump 23 which serves todischargethe liquid from'the hydraulicbrake after the device is 'arrestedyand todeliver it into a suitable tank, so thatitwill servefor the DGXtzflCtlOIl of the brake when required to slow up the vehicle. Upon the end ofthe hydraulic brake. shaft- I is mounted an oil pump 24, operatingin either direction, which bearings of the apparatus inieither direction of travel. The whole amount of the lubri eating oil will be collected in the bottom of the cylindrical casingof the'stationa axle inthe part 25 which is subject to with awal. 9

The apparatus thus provided isofa very V simple constructiongit is balancedim the:

most approved manner, and affords a ready access to all the operative parts of the mechanism and the electric motor.

Obviously, the bevel pinions actuating each of the two loose vehicle wheels are inclosed in a special casing which is mounted on the vehicle axle, not shown.

Having thus described my apparatus, what I claim as new therein, and my own invention, is Y 1. In an actuatin device for the single axles of railroad velncl'es, the combination of a stationary vehicle axle, a loose wheel;

' and elastic means connecting the said motor said axle, means for imparting the rotation with the-said vehicle axle.

3. In an actuating device for the single axles ofrailroad vehicles, the combination of p a stationary vehicle axle, a loose wheel mounted'at the end'of the said axle, a vertical motor disposed at the middle of the said axle, means for imparting the rotation of the said motor to the said'loose wheels through the medium ofa differential device, a commutator disposed atthe upper part of the said motor, a casing which 18 adapted to cover the;said commutator and is suitably apertured, the said casing extending within the vehicle body.

4.: In an actuating device for the single axlesof railroad vehicles, the combination of a stationaryvehicle axle, a loose wheel mounted at each end of the said axle, a vertical motor disposed at the middle of the 'ofthe said' motor to the said loose wheels through the medium of a differential device,

a-co'mm1itator disposed atthe upper part of the said motor, a casing which is adapted to cover the said commutator and: is suitably a'pertured, the said casing extending within the vehicle body, means being provided for the withdrawal of air at thelower part of said 'motor and forldischarging this air,' 1 through apertures "in thesaid easing, into the vehicle body. 1

'5. In:a'n actuating device for the single axles of railroadvehicles, the combination of a stationary vehicle axle, a loose wheel mountedj at eachendof said axle, a casing resting at the middle upon said rule, a motor with vertical shaft placed upon said cas- 1ng,'a differential gear in said casing, means for connecting said differential gear with the rotating part of said motor, a power transmitting shaft adapted to transmit the rotation of the said motor to the said wheels, said shaft being placed obliquely with respect to said vehicle axle.

6. In an actuating device for the single axles of railroad vehicles, the combination of a stationary vehicle axle,-a loose wheel mounted at each end of said axle, a casing resting at the middle upon said axle, a motor with vertical shaft placed upon said casing, a differential gear in said casing, means for connecting said differential gear with the rotating part'of said motor, apower transmitting shaft adapted to transmit the rotation of thesaid motor to the said wheels,

said shaft being placed obliquely with re-' spect to said vehicle axle, and abrake drum placed upon the verticalmoto'r shaft between said motor and said differential gear.

7. In an actuating device for the single axles of railroad vehicles, the combination of, a stationary vehicle axle, a loose wheel mounted at each end of] said axle, a casing resting at the middle upon said axle, a motor with vertical shaft placed upon'said casing, a differential gear in said casing, means for connecting said differential gear with the rotating part of said motor, a power transmitting shaft adapted to transmit the rotation of the said motor to the said wheels, said shaft .being placed obliquely with respect to said vehicle axle, and rubber washers, interposed between the said motor and said casing and adapted to protect said motor against jarrings.

8; In an actuating device for the single axles of railroad vehicles,.the combination of a stationary, vehicle axle, a loose wheel mounted at each end of said axle, a casing resting at the middle upon said axle, a motor with vertical shaft placed upon said casing, a difi'erential gear in said casing, means for connecting said differential gear with the rotating part of said motor, a'power trans-t mittingshaft adapted to transmit the rotation of the said motor to thesaid wheels,

said shaft being placed obliquely with ree spect to said vehicle axle, a ,hevel gear 'npon each of said loose wheels, a bevel pinion at each end of said power transmittingshaft" and adapted to mesh with said bevel gear,

and elastic means adapted to connect said bevel gear with said wheel.

9. In an actuating device for the single axles of railroad vehicles, the combination of a stationary vehcile axle, a loose wheel mounted at each end of said axle, a casing resting at the middle upon said axle, a motor with vertical shaft placed upon said casing, a difi'erential gear in said casing, means for connecting said differential gear with the rotating part of said motor, a power trans mitting shaft adapted to transmit the re iI-i tation of the said motor to the said wheels, said shaft being placed obliquely with respect to said vehicle axle, a hydraulic brake on one side of said casingrwhose shaft is connected to said power transmitting shaft, a small electric motor on the other side of said casing, a pump adapted to be actuated by said small motor and which serves to discharge the liquid from said hydraulic brake after the actuating device is arrested, a tank 10 in which said pump delivers the liquid, and an oil pump upon the shaft of said hydraulic brake for lubricating the actuating device.

In testimony whereof I have hereunto affixed my signature.

ALBERT HUGUENIN. 

